ruvnet/RuView · error · anyhow::Error

cannot read {}: {e}

Error message

cannot read {}: {e}

What it means

room-status failed to std::fs::read_to_string the specialist-bank file (default ./room-bank.json). The command is read-only reporting; the io::Error is typically NotFound (train-room not run yet, wrong path, or wrong working directory), permission denied, or non-UTF-8 content when another artifact is passed by mistake.

Source

Thrown at v2/crates/wifi-densepose-cli/src/room.rs:304

    Ok(())
}

// ---------------------------------------------------------------------------
// room-status
// ---------------------------------------------------------------------------

/// Arguments for `room-status`.
#[derive(Args, Debug, Clone)]
pub struct RoomStatusArgs {
    /// Specialist-bank file.
    #[arg(long, default_value = "./room-bank.json")]
    pub bank: String,
}

/// Execute `room-status`.
pub async fn room_status(args: RoomStatusArgs) -> Result<()> {
    let raw = std::fs::read_to_string(&args.bank)
        .map_err(|e| anyhow::anyhow!("cannot read {}: {e}", args.bank))?;
    let bank = SpecialistBank::from_json(&raw).map_err(|e| anyhow::anyhow!("{e}"))?;
    println!("room:        {}", bank.room_id);
    println!("baseline:    {}", bank.baseline_id);
    println!("trained_at:  {}", bank.trained_at_unix_s);
    println!("anchors:     {}", bank.anchor_count);
    println!("specialists: {:?}", bank.trained_kinds());
    Ok(())
}

// ---------------------------------------------------------------------------
// room-watch
// ---------------------------------------------------------------------------

/// Arguments for `room-watch`.
#[derive(Args, Debug, Clone)]
pub struct RoomWatchArgs {
    /// Specialist-bank file (single-node mode).
    #[arg(long, default_value = "./room-bank.json")]

View on GitHub (pinned to 4685618388)

Solutions

1. Run train-room first and pass the exact path it wrote via --bank
2. Use an absolute path instead of relying on the ./room-bank.json default
3. Confirm the file is the JSON bank, not another artifact
4. Fix permissions if the file exists but is unreadable

Example fix

// before
$ cd /srv && ruview room-status   # cannot read ./room-bank.json

// after
$ ruview room-status --bank /srv/ruview/room-bank.json

fn bank_file_readable(path: &str) -> bool {
    std::path::Path::new(path).is_file() && std::fs::read_to_string(path).is_ok()
}

When it happens

Trigger: Querying status before train-room produced the bank; --bank defaulting to ./room-bank.json while running from another directory; passing the enrollment JSON or binary baseline instead of the bank.

Common situations: Relative-path assumptions across shell sessions; artifact mixups along the calibrate, enroll, train-room, room-status chain.

Related errors

• cannot read baseline {path}: {e} — run `calibrate` first
• cannot read {}: {e} — run `enroll` first
• cannot read geometry {path}: {e}
• cannot read {path}: {e}
• Refusing CLI access: repository marker escapes the trusted r

AI-assisted analysis of ruvnet/RuView@4685618388 (2026-08-16). Data as JSON: /api/errors/a8985751a2b5223e. Report an issue: GitHub.